The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 27, 1999
Filed:
Jan. 23, 1998
Applicant:
Inventor:
Edward D Sell, Iola, KS (US);
Assignee:
TRAMEC Corporation, Iola, KS (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B60L / ;
U.S. Cl.
CPC ...
307-91 ; 307118 ; 303D / ;
Abstract
A method and apparatus for permitting use of an ABS electrical power circuit associated with a tractor-trailer vehicle to provide auxiliary power whenever the trailer is parked and which provides for full power to an ABS brake control circuit through the ABS electrical power circuit in response to air pressure in the emergency brake supply line of the tractor-trailer vehicle being above a predetermined minimum which is sufficient to release the trailer's emergency brake and permit movement of the trailer.